diff --git a/pydyton/communities.py b/pydyton/communities.py
index 7e49ab04dbb14fbb76a517e6b5b64b07270c38ce..da9c2b81657307edbe1958bcf7f8c27d6c217724 100644
--- a/pydyton/communities.py
+++ b/pydyton/communities.py
@@ -79,8 +79,8 @@ class EpochCommunity:
         if node not in self.old_graph:
             return 0
 
-        edges = elf.old_graph[node]
-        community = seld[node]
+        edges = self.old_graph[node]
+        community = self[node]
         return sum([
             edge['duration']
             for other, edge in edges.items()